[2] New Zealand is situated about 2,000 km (1,200 mi) southeast of Australia across the Tasman Sea, its closest neighbours to the north being New Caledonia, Fiji and Tonga.
During its long period of isolation, New Zealand developed a distinct biodiversity of animal, fungal and plant life.
The country's varied topography and its sharp mountain peaks, such as the Southern Alps, owe much to the tectonic uplift of land and volcanic eruptions.
Charles III, as the king of New Zealand, is the head of state and, in his absence, is represented by a non-partisan governor-general.
Political power is held by the democratically elected New Zealand Parliament under the leadership of the prime minister, who is the head of government.